Class: NMEAPlus::Message::AIS::VDMPayload::MMSIInfo

Inherits:

Object

• Object
• NMEAPlus::Message::AIS::VDMPayload::MMSIInfo

Defined in:

lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb

Overview

A container for MMSI (Maritime Mobile Service Identity) information, all of which is indicated from the MMSI integer value itself.

Instance Attribute Summary

• #category ⇒ Symbol readonly

  The MMSI category as defined by ITU-R M.585-7.

• #category_description ⇒ String readonly

  The MMSI category as defined by ITU-R M.585-7.

• #country_id ⇒ Integer readonly

  The ISO 3166-1 country ID indicated by the MMSI Maritime Identification Digits (MID).

• #id ⇒ Integer readonly

  The MMSI.

• #mid ⇒ Integer readonly

  The MMSI Maritime Identification Digits (MID), indicating country codes as specified by the ITU.

Instance Method Summary

• #initialize(mmsi) ⇒ MMSIInfo constructor

  Seed the object with the MMSI.

Constructor Details

#initialize(mmsi) ⇒ MMSIInfo

Seed the object with the MMSI. The ID contains all info.

Parameters:

• mmsi (Integer) —

  The MMSI

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 17

def initialize(mmsi)
  @id = mmsi
end

Instance Attribute Details

#category ⇒ Symbol (readonly)

The MMSI category as defined by ITU-R M.585-7

Returns:

• (Symbol) —

  The symbol for the MMSI category

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 24

def category
  case id.to_s.rjust(9, '0') # formatted as 9 digit string with leading 0s
  when /[2-7]......../ then :individual_ship
  when /00...1.../ then :coast_station
  when /00...2.../ then :harbor_station
  when /00...3.../ then :pilot_station
  when /00...4.../ then :ais_repeater_station
  when /00......./ then :coast_station
  when /111...1../ then :sar_aircraft_fixed
  when /111...5../ then :sar_aircraft_helicopter
  when /1......../ then :sar_aircraft
  when /8......../ then :handheld
  when /98......./ then :auxiliary_craft
  when /970....../ then :sar_transmitter
  when /972....../ then :man_overboard
  when /974....../ then :epirb
  when /99...1.../ then :aton_physical
  when /99...6.../ then :aton_virtual
  when /99......./ then :aton
  else
    :unknown_mmsi_category
  end
end

#category_description ⇒ String (readonly)

The MMSI category as defined by ITU-R M.585-7

Returns:

• (String) —

  the human-readable description the MMSI category

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 51

def category_description
  case category
  when :individual_ship then "Individual ship"
  when :coast_station then "Coast station"
  when :harbor_station then "Harbor station"
  when :pilot_station then "Pilot station"
  when :ais_repeater_station then "AIS repeater station"
  when :sar_aircraft then "SAR aircraft"
  when :sar_aircraft_fixed then "SAR fixed-wing aircraft"
  when :sar_aircraft_helicopter then "SAR helicopter"
  when :aton_physical then "Physical AIS AtoN"
  when :aton_virtual then "Virtual AIS AtoN"
  when :aton then "AIS Aid to Navigation"
  when :auxiliary_craft then "Auxiliary craft"
  when :handheld then "Handheld transceiver"
  when :sar_transmitter then "AIS-SART"
  when :man_overboard then "MOB (Man Overboard)"
  when :epirb then "EPIRB"
  else
    category.to_s
  end
end

#country_id ⇒ Integer (readonly)

The ISO 3166-1 country ID indicated by the MMSI Maritime Identification Digits (MID)

Returns:

• (Integer) —

  the MID

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 95

def country_id
  # https://github.com/S73417H/MIDs
  # https://github.com/alexrabarts/iso_country_codes
  # JSON.parse(IO.read("mids.json")).each {|k, v| puts "when #{k} then #{IsoCountryCodes.find(v[1]).numeric.to_i}" }
  case mid
  when 201 then 8
  when 202 then 20
  when 203 then 40
  when 204 then 620
  when 205 then 56
  when 206 then 112
  when 207 then 100
  when 208 then 336
  when 209 then 196
  when 210 then 196
  when 211 then 276
  when 212 then 196
  when 213 then 268
  when 214 then 498
  when 215 then 470
  when 216 then 51
  when 218 then 276
  when 219 then 208
  when 220 then 208
  when 224 then 724
  when 225 then 724
  when 226 then 250
  when 227 then 250
  when 228 then 250
  when 229 then 470
  when 230 then 246
  when 231 then 234
  when 232 then 826
  when 233 then 826
  when 234 then 826
  when 235 then 826
  when 236 then 292
  when 237 then 300
  when 238 then 191
  when 239 then 300
  when 240 then 300
  when 241 then 300
  when 242 then 504
  when 243 then 348
  when 244 then 528
  when 245 then 528
  when 246 then 528
  when 247 then 380
  when 248 then 470
  when 250 then 372
  when 251 then 352
  when 252 then 438
  when 253 then 442
  when 254 then 492
  when 255 then 620
  when 256 then 470
  when 257 then 578
  when 258 then 578
  when 259 then 578
  when 261 then 616
  when 262 then 499
  when 263 then 620
  when 264 then 642
  when 265 then 752
  when 266 then 752
  when 267 then 703
  when 268 then 674
  when 269 then 756
  when 270 then 203
  when 271 then 792
  when 272 then 804
  when 273 then 643
  when 274 then 807
  when 275 then 428
  when 276 then 233
  when 277 then 440
  when 278 then 705
  when 279 then 688
  when 301 then 660
  when 303 then 840
  when 304 then 28
  when 305 then 28
  when 306 then 531
  when 307 then 533
  when 308 then 44
  when 309 then 44
  when 310 then 60
  when 311 then 60
  when 312 then 84
  when 314 then 52
  when 316 then 124
  when 319 then 136
  when 321 then 188
  when 323 then 192
  when 325 then 212
  when 327 then 214
  when 329 then 312
  when 330 then 308
  when 331 then 304
  when 332 then 320
  when 335 then 340
  when 336 then 332
  when 338 then 840
  when 339 then 388
  when 341 then 659
  when 343 then 662
  when 345 then 484
  when 347 then 474
  when 348 then 500
  when 350 then 558
  when 351 then 591
  when 352 then 591
  when 353 then 591
  when 354 then 591
  when 355 then 591
  when 356 then 591
  when 357 then 591
  when 358 then 630
  when 359 then 222
  when 361 then 666
  when 362 then 780
  when 364 then 796
  when 366 then 840
  when 367 then 840
  when 368 then 840
  when 369 then 840
  when 370 then 591
  when 371 then 591
  when 372 then 591
  when 373 then 591
  when 375 then 670
  when 376 then 670
  when 377 then 670
  when 378 then 92
  when 379 then 850
  when 401 then 4
  when 403 then 682
  when 405 then 50
  when 408 then 48
  when 410 then 64
  when 412 then 156
  when 413 then 156
  when 414 then 156
  when 416 then 158
  when 417 then 144
  when 419 then 356
  when 422 then 364
  when 423 then 31
  when 425 then 368
  when 428 then 376
  when 431 then 392
  when 432 then 392
  when 434 then 795
  when 436 then 398
  when 437 then 860
  when 438 then 400
  when 440 then 410
  when 441 then 410
  when 443 then 275
  when 445 then 408
  when 447 then 414
  when 450 then 422
  when 451 then 417
  when 453 then 446
  when 455 then 462
  when 457 then 496
  when 459 then 524
  when 461 then 512
  when 463 then 586
  when 466 then 634
  when 468 then 760
  when 470 then 784
  when 472 then 762
  when 473 then 887
  when 475 then 887
  when 477 then 344
  when 478 then 70
  when 501 then 250
  when 503 then 36
  when 506 then 104
  when 508 then 96
  when 510 then 583
  when 511 then 585
  when 512 then 554
  when 514 then 116
  when 515 then 116
  when 516 then 162
  when 518 then 184
  when 520 then 242
  when 523 then 166
  when 525 then 360
  when 529 then 296
  when 531 then 418
  when 533 then 458
  when 536 then 580
  when 538 then 584
  when 540 then 540
  when 542 then 570
  when 544 then 520
  when 546 then 258
  when 548 then 608
  when 553 then 598
  when 555 then 612
  when 557 then 90
  when 559 then 16
  when 561 then 882
  when 563 then 702
  when 564 then 702
  when 565 then 702
  when 566 then 702
  when 567 then 764
  when 570 then 776
  when 572 then 798
  when 574 then 704
  when 576 then 548
  when 577 then 548
  when 578 then 876
  when 601 then 710
  when 603 then 24
  when 605 then 12
  when 607 then 250
  when 608 then 826
  when 609 then 108
  when 610 then 204
  when 611 then 72
  when 621 then 262
  when 613 then 120
  when 615 then 178
  when 616 then 174
  when 617 then 132
  when 618 then 250
  when 619 then 384
  when 620 then 174
  when 622 then 818
  when 624 then 231
  when 625 then 232
  when 626 then 266
  when 627 then 288
  when 629 then 270
  when 630 then 624
  when 631 then 226
  when 632 then 324
  when 633 then 854
  when 634 then 404
  when 635 then 250
  when 636 then 430
  when 637 then 430
  when 638 then 728
  when 642 then 434
  when 644 then 426
  when 645 then 480
  when 647 then 450
  when 649 then 466
  when 650 then 508
  when 654 then 478
  when 655 then 454
  when 656 then 566
  when 659 then 516
  when 660 then 638
  when 661 then 646
  when 662 then 729
  when 663 then 686
  when 664 then 690
  when 665 then 654
  when 666 then 706
  when 667 then 694
  when 668 then 678
  when 669 then 748
  when 670 then 148
  when 671 then 768
  when 672 then 788
  when 674 then 834
  when 675 then 800
  when 676 then 180
  when 677 then 834
  when 678 then 894
  when 679 then 716
  when 701 then 32
  when 710 then 76
  when 720 then 68
  when 725 then 152
  when 730 then 170
  when 735 then 218
  when 740 then 238
  when 745 then 254
  when 750 then 328
  when 755 then 600
  when 760 then 604
  when 765 then 740
  when 770 then 858
  when 775 then 862
  end
end

#id ⇒ Integer (readonly)

The MMSI

Returns:

• (Integer)

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 13

def id
  @id
end

#mid ⇒ Integer (readonly)

The MMSI Maritime Identification Digits (MID), indicating country codes as specified by the ITU. www.itu.int/online/mms/glad/cga_mids.sh

Returns:

• (Integer) —

  the MID

# File 'lib/nmea_plus/message/ais/vdm_payload/mmsi_info.rb', line 78

def mid
  range = case category
          when :individual_ship then 0..2
          when :coast_station, :harbor_station, :pilot_station, :ais_repeater_station then 2..4
          when :sar_aircraft, :sar_aircraft_fixed, :sar_aircraft_helicopter then 3..5
          when :aton_physical, :aton_virtual, :aton then 2..4
          when :auxiliary_craft then 2..4
          when :handheld then 1..3
          when :sar_transmitter, :man_overboard, :epirb then 3..5
          end
  return nil if range.nil?
  id.to_s.rjust(9, '0')[range].to_i
end